Home / 7,457.92-10,291.76-4,100.80

Finding the Fourth Proportional to 7,457.92, 10,291.76 and 4,100.80

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Solution

The fourth proportional to 7,457.92, 10,291.76 and 4,100.80 is: 5,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.92 : 10,291.76 = 4,100.80 : x
  2. Step 2: Convert to fraction form
    7,457.92/10,291.76 = 4,100.80/x
  3. Step 3: Cross multiply
    7,457.92x = 10,291.76 × 4,100.80
  4. Step 4: Simplify right side
    7,457.92x = 42,204,449.41
  5. Step 5: Solve for x
    x = 42,204,449.41/7,457.92
  6. Step 6: Final answer
    x = 5,659.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.